Cookie Not Marked as HttpOnly
Summary#
Invicti identified a cookie not marked as HTTPOnly.
HTTPOnly cookies cannot be read by client-side scripts, therefore marking a cookie as HTTPOnly can provide an additional layer of protection against cross-site scripting attacks.
Impact#
During a cross-site scripting attack, an attacker might easily access cookies and hijack the victim's session.
Actions To Take#
- See the remedy for solution.
- Consider marking all of the cookies used by the application as HTTPOnly. (After these changes javascript code will not be able to read cookies.)
Remediation#
Mark the cookie as HTTPOnly. This will be an extra layer of defense against XSS. However this is not a silver bullet and will not protect the system against cross-site scripting attacks. An attacker can use a tool such as XSS Tunnel to bypass HTTPOnly protection.
Classifications#
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